91730 and 90621 receive effectively the same standardized Area Score. Which fits you better depends on which dimensions you weight — the differences below are where they actually diverge.
Signals
91730
90621
Opportunity
59 · Top 41%
vs54 · Bottom 49%
Growth
33 · Bottom 22%
vs28 · Bottom 14%
Climate
89 · Top 6%
vs100 · Top 4%
Physical resilience
7 · Bottom 2%
vs11 · Bottom 7%
Housing affordability
41 · Bottom 6%
vs38 · Bottom 5%
Access
100 · Top 2%
vs100 · Top 4%
Economic stability
68 · Top 33%
vs74 · Top 23%
Measured values
| Metric | 91730 | 90621 | Source period |
|---|---|---|---|
| Population | 71,613 | 35,984 | 2024 ACS 5-Year |
| Median household income | $92,237 | $97,612 | 2024 ACS 5-Year |
| Per capita income | $41,038 | $37,724 | 2024 ACS 5-Year |
| Population density | 5,216/sq mi | 8,584/sq mi | 2024 ACS 5-Year |
| Median home value | $616,300 | $832,000 | 2024 ACS 5-Year |
| Median gross rent | $2,299 | $2,167 | 2024 ACS 5-Year |
| Homeownership rate | 47.3% | 34.8% | 2024 ACS 5-Year |
| Unemployment rate | 4.3% | 4.2% | June 2026 |
| Employment change (year over year) | -1.4% | -1.8% | June 2026 |
| Bachelor's degree or higher | 32.6% | 32.7% | 2024 ACS 5-Year |
| Poverty rate | 10.2% | 10.1% | 2024 ACS 5-Year |
| Housing units permitted (12 months) | 292 | 73 | 12 months ending July 2026 |
| Permits per 1,000 residents | 1.7 | 0.9 | 12 months ending July 2026 |
| Permit change (year over year) | -64.9% | -22.3% | 12 months ending July 2026 |
| Average July high | 94°F | 84°F | 1991-2020 Normals |
| Average January low | 45°F | 46°F | 1991-2020 Normals |
| Annual precipitation | 11.6" | 11.9" | 1991-2020 Normals |
| Distance to major airport | 3 mi | 10 mi | NASR current cycle |
| Average commute | 35.0 min | 32.9 min | 2024 ACS 5-Year |
| Median age | 36.3 | 36.2 | 2024 ACS 5-Year |
| Public schools | 11 | 6 | 2024-25 school year |
| Students per teacher | 22.19 | 23.19 | 2024-25 school year |
| Free or reduced-price lunch eligibility | 68.0% | 83.2% | 2024-25 school year |
A bolded value is the more favorable of the two where the metric has a clear direction. Metrics like population and density have no inherent better or worse and are shown unweighted.
Physical risk tradeoff
91730
Elevated or high exposure: wildfire, earthquake, inland flooding.
90621
Elevated or high exposure: earthquake, inland flooding.
Full profiles: 91730 — Rancho Cucamonga, CA · 90621 — Buena Park, CA · How this is calculated: methodology